What is linear squares method?

What method of cooking will brown the s'mores squares?

• Answer:

  If you have access to an oven broiler, put the squares under the "high" setting but watch it carefully~it won't take long for the browning. Turn them over and brown the other side. If you're outside, use barbecue tongs to hold the graham crackers over the open flame just long enough to brown them before you make the marshmallows. Then assemble as usual.